In Section 6 of [1]}, Gross and Siebert show that when \((X,D)\)  satisfies Assumption \(1.1\)  of loc cit. the structure constants of the intrinsic mirror are weighted counts of pairs of broken lines meeting at a point, with weights involving the virtual counts of log maps marked by associated with two broken line types. Roughly speaking, the relationship between the two log geometric mirror constructions is that curves contributing to the structure constants in the intrinsic mirror symmetry construction degenerate to two logarithmic curves glued along a zero strata \(s \in X\) , which tropicalizes to a pair of broken lines intersecting at some generic point in the cone \(\sigma \in \Sigma (X)\)  associated with the stratum \(s \in X\) . This is described in Section 6 of [1]}, and uses Lemma \(7.8\)  of [3]} in a key way to construct this degeneration. We will make use of a similar argument in the proof of Theorem REF .
